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Sulphates of alkali earth metals dissolve like this: $$ce{MSO4(s) <=>[H2O] M^2+(aq) + SO4^2-(aq)}tag{1}$$ with the solubility product constant (kept original eq. numbering): $$K_mathrm{sp} = a(ce{M^2+})a(ce{SO4^2-}),tag{3}$$ where $a(ce{X})$ is thermodynamic activity of the ion $ce{X}$. For diluted solutions is can be approximated by molar concentrations (denoted as []) as $$K_mathrm{sp} = [ce{M^2+}][ce{SO4^2-}]tag{4}.$$ $K_mathrm{sp} gt [ce{M^2+}][ce{SO4^2-}] implies […]

Methylamine Skeletal formula of methylamine with all explicit hydrogens added Ball and stick model of methylamine Spacefill model of methylamine Names Pronunciation /ˌmɛθələˈmiːn/(METH-ə-lə-MEEN), /ˌmɛθəˈlæmən/(METH-ə-LA-mən), /məˈθɪləˌmiːn/(mə-THIL-ə-meen)[2] Preferred IUPAC name Other names Identifiers Abbreviations MMA 741851 ChEBI ChEMBL ChemSpider DrugBank ECHA InfoCard 100.000.746 EC Number 145 KEGG MeSH methylamine RTECS number UNII UN number 1061 Properties CH3NH2 […]